There're 3 aircraft made by Proxy Aviation Systems.
| N50PX | 0000 Proxy Aviation Systems FIREFLY | 003 | 1 | 1 | MD, United States |
| N60PX | 0000 Proxy Aviation Systems FIREFLY | 004 | 1 | 1 | MD, United States |
| N95PX | 2006 Proxy Aviation Systems FIREFLY | 002 | 1 | 1 | MD, United States |
